Kill or timeout a Future in Scala 2.10

Question

Hi,

I\'m using Scala 2.10 with the new futures library and I\'m trying to write some code to test an infinite loop. I use a scala.concurrent.Future to r

Answer 1

I had a similar problem and wrote the following nonblocking future op:

class TerminationToken(var isTerminated: Boolean)
object TerminationToken { def apply() = new TerminationToken(false) }

 implicit class FutureOps[T](future: Future[Option[T]]) {
 def terminate(timeout: FiniteDuration, token: TerminationToken): Future[Option[T]] = {
   val timeoutFuture = after[Option[T]](timeout, using = context.system.scheduler) {
     Future[Option[T]] { token.isTerminated = true; None } }
          Future.firstCompletedOf[Option[T]](Seq (future recover { case _ => None }, timeoutFuture))
     }
   }

Then just create a future that returns an option, and use .terminate(timeout, token) on it